Scheduling

Hours Calculator

Calculate the number of hours and minutes between two times, and total hours for a work day. Use this Time and dates tool to enter your numbers, review the result, and understand the key assumptions before making the next decision.

What you get
A focused calculator, clear explanation, common questions, and useful next tools.
Quick intro
Calculator
Result
Explanation
Common questions
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Calculator tool

How this calculator works
The result depends on the numbers you enter and the assumptions shown below.

Enter start and end times to find elapsed hours and minutes. Useful for tracking work hours, billing time, or calculating shifts. Handles overnight periods by detecting when end is before start.

Review the inputs carefully and treat the output as an estimate. For decisions involving money, taxes, health, law, or security, compare the result with trusted professional guidance when needed.

Frequently asked questions

How do I calculate hours for overnight shifts?

If your end time is earlier than your start time (e.g., 10 PM to 6 AM), the calculator detects this and adds 24 hours automatically.